Balsamic Onion Jam Crostini With Prosciutto

Balsamic Onion Jam Crostini With Prosciutto

If you love bruschetta, you might want to have a few more options to rotate between. How about a balsamic onion jam crostini with prosciutto? It’s practically all the best Italian ingredients in one bite.

It’s easy to make.

It looks beautiful, so you can be proud serving these at a party, lunch or dinner.

And it’s not your usual tomato flavoured bread.

Let’s make it!

But first, let me answer all the questions you might have about balsamic onion jam.




topping crostini with balsamic onion jam

What does caramelized onion jam taste like?

Caramelized onion jam has a sweet, savory, and slightly tangy flavor, with a rich depth from the caramelized onions. It’s a versatile spread that can enhance a wide variety of dishes.


Should you stir caramelized onions?

Yes, you should stir caramelized onions occasionally to ensure they cook evenly and don’t burn. However, avoid stirring them too frequently as it could prevent them from reaching the desired caramelization. Every 3 to 5 minutes is fine.


What to eat with onion jam?

Onion jam pairs wonderfully with a variety of dishes. It’s delicious on burgers, sandwiches, pizzas, or served with cheese and crackers. It can also be used as a glaze for meat or vegetables or as a condiment for grilled sausages and other meats. It’s beautiful on certain fish like tuna. Its sweet and savory flavor adds a gourmet twist to many traditional and modern dishes.

Today we are trying it on some crostini, and pairing that with both a cured Italian ham and a mature cheese.

balsamic onion jam crostini with prosciutto (5)

Balsamic Onion Jam Recipe + Making The Crostini With Prosciutto

You now have all the answers. Gather your ingredients and start making this delicious appetizer, or light meal.


balsamic onion jam crostini with prosciutto (5)

Balsamic Onion Jam Crostini With Prosciutto

Tired of bruschetta, or need more options? Switch things up with this balsamic onion jam crostini, topped with prosciutto crudo. It's delish.
Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Course Appetizer
Cuisine Italian
Servings 4 crostini
Calories 300 kcal


  • 1 chopping board
  • 1 chopping knife
  • 1 large pan
  • 1 tablespoon
  • 1 silicone cooking spoon
  • 1 cheese grater



  • Slice your onions and add to a pan.
    chopped onions for balsamic onion jam
  • Drizzle the EVOO and leave to sauté for 7 minutes.
    drizzling Belmorso extra virgin olive oil on onions
  • Add Belmorso IGP Balsamic Vinegar of Modena , mix and let them caramelize for another 20 minutes.
    making balsamic onion jam with Belmorso IGP Balsamic Vinegar
  • Take off the heat and leave to cool. You can then blend it for a smooth consistency, or keep it as is for a rustic chunky style. I left mine chunky.
  • Brush your bread slices with some Belmorso EVOO, and grill each one. You can use a grilling pan, or the same pan you used for your onions. It will infuse the bread with that flavour.
    drizzling EVOO on bread for crostini
  • Top each slice with the balsamic onion jam you made.
    topping crostini with balsamic onion jam
  • Add one or two slices of prosciutto crudo on top of the onions, depending on how large each is. Mine were small, so I added two.
    making crostini with balsamic onion jam
  • I used a potato peeler to shave some pecorino cheese on top of the prosciutto. You can use a proper cheese shaver.
  • Add a few leaves of fresh basil.
  • Drizzle a little Belmorso IGP Balsamic Vinegar of Modena and get munching. Buon appetito!
    balsamic onion jam crostini with prosciutto (1)


The calories are for one crostini.
Keyword balsamic, crostini, onion jam, prosciutto


Other Italian Recipes With Caramelized Onions

tuna steak italian steak sandwich (3)


  1. Tuna Steak with onions & white balsamic vinegar
  2. Balsamic & Provolone Ciabatta Steak Sandwich


And if you’d like more crostini recipes, check out this one with 3 bruschetta variations.


Author: Alessia


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